/*
 * Copyright (C) 2009 Leandro Aparecido <lehphyro@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.metalframework.spring.configuration;

import org.aopalliance.intercept.*;
import org.metalframework.annotation.*;
import org.metalframework.util.*;
import org.slf4j.*;
import org.springframework.beans.*;
import org.springframework.context.*;

@InfrastructureComponent(SpringConfigurationInterceptor.NAME)
public class SpringConfigurationInterceptor implements MethodInterceptor, ApplicationContextAware {

	public static final String NAME = "springConfigurationInterceptor";

	private static final Logger logger = LoggerFactory.getLogger(SpringConfigurationInterceptor.class);
	
	private ApplicationContext applicationContext;
	
	public Object invoke(MethodInvocation invocation) throws Throwable {
		logger.debug("Intercepting invocation to configure returned value [{}]", invocation);
		
		Object returnedValue = invocation.proceed();
		if (returnedValue == null) {
			return null;
		}
		
		return ApplicationContextUtils.configure(returnedValue, getApplicationContext());
	}

	public ApplicationContext getApplicationContext() {
		return applicationContext;
	}
	
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		this.applicationContext = applicationContext;
	}
}
